Get your file accepted, first try
Exact pixel size, an exact KB range — including the minimum, which is what actually gets uploads rejected and which almost every other tool ignores. 117 free tools to merge, compress, and convert PDFs, photos, and documents, all running in your browser.
Fix a photo for an upload form →Don't take our word for it — turn off your Wi-Fi. Docexp keeps working. A site that runs with the network off cannot be uploading your files anywhere.
Percentage calculator
What is X% of Y, and what percent is X of Y.
The two percentage questions that come up constantly and that everyone briefly second-guesses: what is X% of Y, and X is what percent of Y. Both are here, so you don't have to remember which way round to divide.
How Percentage calculator works
- Enter or paste your text or values.
- It's processed instantly on your device as you type.
- Copy or download the result.
Good to know: A percentage increase and the decrease that undoes it are not the same number — a price that rises 25% has to fall by 20% to get back to where it started. It's the classic way to talk yourself into a bad discount.